Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat bay dan slippers" » "phat ba dan slippers", "nhat ban dan slippers", "chat ban dan slippers", "phat ban dan slippers", "phat cay dan slippers", "phat bac dan slippers", "phat bay dan slippery", "phat bay dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phat bay dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
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